Correct!
1. Repeat CT pulmonary angiography shows worsening of the previously seen crazy-paving pattern
Repeat CT pulmonary angiography shows interval worsening of multifocal, bilateral smooth interlobular septal thickening associated with intralobular lines and ground-glass opacity, consistent with worsening of the previously noted “crazy paving” pattern. Mild mediastinal lymphadenopathy remains.
A viral panel was negative (including for SARS-CoV-2), and echocardiography showed normal left ventricular function. GM-CSF testing showed an antibody level <15 pg/mL (normal, <15 pg/mL).
Given all the information presented thus far, which of the following represents the most appropriate next step for the patient’s management? (Click on the correct answer to be directed to the fourteenth and final page).